dll版本兼容

<runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
            <dependentAssembly>
                <assemblyIdentity name="MySql.Data" publicKeyToken="C5687FC88969C44D" culture="neutral"/>
                <bindingRedirect oldVersion="0.0.0.0-5.2.1.0" newVersion="5.0.8.1"/>
            </dependentAssembly>
        </assemblyBinding>
    </runtime>

dll版本兼容

原文：http://www.cnblogs.com/mrhgw/p/6700720.html